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CVE-2026-21643

An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.

Scores

9.8
CVSS 9.8 out of 10, critical severity.
93.9%
EPSS 93.9% chance of exploitation in the next 30 days.

The facts

Published
6 February 2026
Last changed
17 June 2026
NVD status
Analyzed
Severity
Critical, CVSS 9.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
Affects
  • fortinet forticlientems
Known exploited
Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 13 April 2026.
EPSS
93.9% chance of exploitation activity in the next 30 days (percentile 100).

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References